Auxiliary power means for ships and the like



Feb. 18, 1930. J, A, CHOQUET-rE 1,747,817

lA'UXILIARY POWER MEANS FOR S-HIPS AND THE LIKE Y Filed Jan. 9, 1929 v 2 Smets-sheet 1 Feb. 18,A 1930. l l J. A. CHOQUETTE 1,747,817

AUXILIARY POWER MEANS FOR SHIPS AND THE LIKE Filed Jan. 9, 1929 2 sneetssheet 2 f f #-5 -1 l E E d Patented Pebl 1s, 1930- JOHN ALBERT CHOQUETTE, OF OTTAWA, ONTARIO, CANADA AUXILIARY POWER MEANS FOR SHIPS ANSO THE LIKE I Application led January 9, 1929. Serial No. 331,198.

This invention relates to improvements in auxiliary power means for ships and the like and is in part a continuation of my previously filed United States application No.

A 1 5 12,929 led March 3, 1925 and gone to Patent- No. 1,689,114 dated October 23,:1928. One object of the invention is to provide means of durable and economical construction that will enable boats .and the like to be more efficiently drive'nr Another `object is to provide a method and means for creating Within a vessel a head of the operating fluid in addition tothe head automatically created in suchiuid without the vessel by the submerging of the vessel therein.

Yet another object is to provide auxiliary mechanism for accelerating the movement of ships and the like which will operate automatically on. the vessel moving forward.

With the foregoing and other objects in View, hereinafter more fully referred to, the novel features of the invention comprise hydra-ulic power mechanism operable by pres- 25 sure'of the water in which a boat is partially l submerged, and means within the vessel for diverting a portion of such water, causing it to circulate, and imparting to such portion additional pressure while in circulation .to co-operate with the .water under normal pressure. An example ofmy invention is illustrated in the accompanying drawings in which like numerals ofreference indicate corresponding parts in each figure and .in which,

Figure 1 is a side elevation of the mechanism ,in the hullof a' ship which is partly` broken away. .A

Figure 2 is a plan view of the underside of a vessel 'partly broken away showing my l invention.

Figure 3 is an enlarged section of the auxiliary powei` generating mechanism.

Figure 4 is an end view, partly in section,'of Figure 3. 1 ,Referring more particularly to' the drawings, A designa-tes a vessel or boat of any suitable construction and B the turbines arranged in the bottom thereof andofvspecial vconstruction as disclosed in my United States 19 of any-suitable form rigidly secured at 20 pipe 34 and pipe 35 to the pipe-24 which in Y application No. 748,404, filed November 7th,' 1924, and gone to United States Patent No. 1,661,716, dated March 6, 1928, for improvements in fluid turbines, and in view of which it is not now proposed to enter into the details of the construction except in so far as they aect the present invention.

. The turbines B are provided with theusual rotor 10 mounted on the shaft 11 journalled I in the ends 12. They are also provided with inlet ports 13 and 14 and discharge ports 15 and 16. v

The port 13 may be termed the main inlet port and communicates directly with the water in which the vessel is. partially submerged through a suitably constructed opening 17 in the bottom 18 of the vessel A. Associated-with this opening 17, and as more particularly disclosed in Figure 3, isa scoop' in any suitable manner to the bottom 18. Y This scoo is also provided at the front or intake en with a screen 21 and as a-Whole. is adapted on the vessel A moving forward to scoop up thewater and direct it through the opening 17 into the turbine intake port 13, a portion of the water so scooped up alsov being conveyed into the conduit or pipe 22 communicating with the opening 23 in the curved closed end of the scoop plate 19 and hereinafter more fully referred to.

Connected in any well known mannerto the' discharge port 15 of the turbine B is a pipe 24 in turn connected to a pump 25 provided with a waste or exhaust pipe 26 85 having a control valve 27 and discharging through the stern of the vessel.

The intake port 14 of the turbine is connected through a pipe 28 to a curved crossA vpipe 29 which in turn is connected through 90 a pipe 30vto a centrifugal pump 31, this pump being also connected through the pipe 22 to the source of water supply through the, scoop 19 and is also provided with a control 95 valve 32. Y l v x Connecting the pipe 28 adjacent to the intake pnrt 14witli` the intakal is an equalizer P1Pe'3 The discharge port 16 is connected by a turn, as previously described, is connected to. the ump 25 provided with a controlled waste disc arge pipe 26 whereby the waste or eX- haustlfrom the discharge ports is carried and conveyed without the vessel.

The opening 17 is provided with a closure l slide 36 carried on the bottom 18 and operable through a rack 37 engaging with a toothed hand operated pinion 38.

The rate of revolution of the rotor 10 is dependent on the velocity and pressure of the operating fluid fed to the inlet ports from the auxiliary head formed in the pipes 28 and 29 and from'the head formed through the submerging of the vessel. To assistin increasing the velocity and cooperating with the head are the adjustable deflectors 42 fully described with the means for operating them in my previously issued United States Patent No. 1,661,716.

Coming now to the' essential and novel feature of my invention, namely the creaf tion of an auxiliary head within the vessel From the foregoing it will be understood i that in operation the intake ports 13and 14 are first closed by means of the deflectors 42. The pump 31 is then started and as the vessel moves forwardly an auxiliary head 1s automatically formed in the pipes-28, 29 and 30 in addition to the head created by the submerging of the vessel. The deflectors are then opened and the `operating Huid delivered to the intake ports 13 and 14 there'- by materially increasing the velocity in revo- 4lution of the rotor 10 and providing automatically concentrated auxiliary power means for the vessel. i

As many changes could be made in the Aabove construction and many apparently widely different embodiments of my inventlon, Within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not .in a limiting sense.

What I claim as my invention is 1. In a turbine of the character described,

the combination with a .cylindrical casing provided with opposed fluid discharge ports and fluid inlet ports, of means for delivering a stream of fluid from without to the intake ports, and means for diverting a portion of said stream and compressing it to create -a head priorto delivering the stream to said ports. y n

2. Auxiliary power means of the character described comprising a turbine provided with a casin having pairs of diametrically opposed inta e and discharge ports, means for automatically delivering a stream of Ioperating fluid under pressure to the intake ports on the vessel moving forward, means for simultaneously diverting a portion of suchstream, subjecting such portion to the influence of pressure generating means, and delivering same to the intake ports.

3. Auxiliary power mechanism of the character' described forships and the like comprising in combination, a turbine, propellers operable by the turbine, means formed in the ship for delivering a stream of fluid to the turbine from without on the vessel moving forward, a centrifugal pump, controlled means connecting the fluid supply with the suction end of said pump, a plurality of controlled pipes of varying diameter connecting the discharge end of the pump with the turbine whereby a stream of operating fluid under ordinary and auxiliary pressure is provided, and means for disciarging and exhausting the operating ui y In witness whereof I have hereunto set my hand.

JOHN ALBERT CHOQUETTE. 

